Data Day 2012_Bakis_Intro to US Census

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Your Community by the Numbers Accessing the most current and relevant Census data Arthur Bakis, Information Services Specialist U.S Census Bureau Boston Regional Office 617-424-4510 [email protected] [email protected]

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Transcript of Data Day 2012_Bakis_Intro to US Census

Page 1: Data Day 2012_Bakis_Intro to US Census

Your Community by the NumbersAccessing the most current and relevant Census data

Arthur Bakis, Information Services Specialist

U.S Census Bureau

Boston Regional Office

617-424-4510

[email protected]

[email protected]

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www.census.gov

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American FactFinder

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Nation

Zip Code Tabulation Area

Metropolitan Areas

States

Congressional Districts Places

Counties

County Subdivision

Census Tracts

Block Groups

Blocks

Cities and Towns

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Census Tract 102.03, Suffolk Cty, MA

Census Tracts generally have a population of 1,500 to 8,000 (optimum 4,000) and follow physical boundaries.

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BG 4, Tract 102.03, Suffolk Cty, MA

Block Groups generally have a population of 300 to 4,000 (optimum 1,500) and follow physical boundaries.

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Block 4001, BG 4, Tract 102.03, Suffolk Cty, MA

Blocks: the smallest geographic level for which census data is available. No population threshold. Size varies.

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Programs

• Decennial Census– Every 10 years, Counts Residents

• American Community Survey (ACS)– Annual Social, Economic and Housing data

• Other Surveys and Censuses– Population Estimates– Economic Census

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Program (cont.)Decennial Census

• In 2000, 1 in 6 households received the 53 question, 40 page long form

• Detailed social, economic & housing info

• 2010 Census was Short Form Only!• 10 Questions

• 2010 Questionnaire- Name - Race - Housing - Sex - Ethnicity Tenure- Age - Household

Relationship

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Program (cont.)Decennial Census

• 2000 Census (and prior censuses back to 1940)

– Two Main Data Files • Summary File 1 – 100% Data (short form)

– Total Population, Age, Gender, Race, Ethnicity, HH Relationship, Tenure, Vacancy

• Summary File 3 – Sample Data (long form)– Education, Language, Foreign Born, Labor Force,

Income, Poverty, Industry/Occupation, Disability, Veterans, Housing Value, Year Structure Built, Rooms in Structure, etc.

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Program (cont.)Decennial Census

• 2010 Census (and prior censuses back to 1940)

– One Main Data File • Summary File 1 – 100% Data (short form)

– Total Population, Age, Gender, Race, Ethnicity, HH Relationship, Tenure, Vacancy

What happened to the data released in Summary File 3?...

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Program (cont.)American Community Survey (ACS)

- Social and Economic information every year rather than just once a decade

- Took the place of the census long form (2005)

- At the start of each month, the questionnaire is mailed to a scientifically selected random sample of households in counties throughout the Nation

- The Census will continue to conduct a short-form-only Census every 10 years

- NOT A COUNT! VIEW TRENDS!

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Program (cont.)American Community Survey (ACS)

CURRENT DATA AVAILABLE FOR 2010!

- Data is currently available for most geographic areas

- Areas with a population 65,000+: 1 Year Estimates (data avail. for 2005, 2006, 2007, 2008, 2009, 2010)

- Areas with a population 20,000+: 3-Year Estimates (data avail. for 2005-07, 2006-08, 2007-09, 2008-2010)

- Areas below 20,000 (incl. census tracts & block groups): 5-year estimates (data avail. for 2005-2009, 2006-2010)

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Program (cont.)American Community Survey (ACS)

!

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Program (cont.)American Community Survey (ACS)

!Since all ACS data are estimates based on a sample, all data items have a Margin of Error